braver



(No Model.) u 2 sneenpsneet 1. R. BEAVER.l

GONVEYER.

No. 544,031. Patsnted Aug. 6, i895.

u Illl I "l, im? j I l `Imm D b UNITED STATES iIM'IL R. DRAVER, or ADRAVER, or

'PTENT FFIC.,

.SAME PLACE.

EYER.

SPECIFICATION forming pm f Letters Application filed April S, 1895.

To aZZ whom .it may concern,.-

yBe it Jnown that I, EMIL RDRAVER, a citizen of the United States, residing at Alliance, in the county of Boxbutte and State of Nebraska, have invented a new and useful Improvement in Conveyers, of which the following is a specification.

My pbfesent invention is primarily designed as an improvement on the lconstruction of conveyor set forth in Letters PatentI of the' United States, No. 538,822, granted to me May 7, 1895; and my object is to improve my aforesaid former construction in matters of detail,

'as hereinafter set forth.

Refei; ng to the accompanying drawings, Figure'el is a broken view in longitudinal sectional, lfvation ofa conveyer constructed 'in accordance with my improvement, the section 'being taken' at the line 1 on Fig. 2 and viewed in the' direction of the arrow; Fig. 2, a section taken at the line 2 on Fig. 1 and viewed in the direction ofthe arrow; Figj, a section l `taken at the line 3 on Fig. 1, viewed in the direction of the arrow and showing by dotted' lines a modification. Figs. 4 and 5 are similar broken longitudinal sections of my improved conveyer, diagrammatic in thirna ture, to illustrate the action of the .pivotal shovel-gates in their back-and-forth motions'.- on the material being conveyed. Fig. 6 is a\ ing a modification; Fig. 7, a broken plan view, of the construction represented in Fig. 6; Fig.' 8, a section taken at the'line 8 on Fig. 6. andy Viewed in the direction of the arrow; and Figs. 9 and 10 are perspective views of different constructions of Vthe shovelgate suitable for my purpose. -r f A is a rectangular box of any desired length and shown as formed with a bottom r, which should be provided with discharge-openings q and q near its opposite ends, sides r and frz, and closed ends 9' 'and r4. In the conveyerf box A, on the bottom, against the opposite sides r' and r2, are stationary rails 11 and p extending throughout the length of the box and affording ways for side `bars B and B', imposed upon them to be reciprocated longitudinally thereon, the length of the side bars being less than that of the box to afford them PatentNo, 544,031, dated August 6, 18,95.

Serial No. 544,289. (No model.) l

elusive, these side bars are connected at suitable and preferably equal intervals by tie-rods lindrical shape and which may enter at their scribed.

Directly above each tie-rod m, as shown in' Fig. 9, or by means'of edge corrugated'form is bent into the Vform of a from which it is suspended. Thus, aswill be seen, the 'pivotallysupported shovel-gates are reversible by turning them over on theirpivf ots to extend in the position 'in which they whiel they are represented by dotted lines,

vertical line directly beneath the pivots and afford lower bearings for the shovel-gates, against which they are reversible, whereby they extend, in either position, at the same angle of inclination with relation'to the conveyer bottom, all according to the principle involved in my aforesaid former construction. -In this connection itmay be suggested` that versing.: the shovel-gates,instead of: turning them over, as described, by turning them whileremaining in: their suspended position .from one side 'of their stops to the other. 'lo enable this to be done the stops must extend, at their ends, through longitudinal slots in the sides of the box A, and the stops must be withdrawa'ble lengthwise from the box to rcmove them from the path of the shovel-gates 4play therein. vAs shown in Figs. 1 to 5, in-

in so turning the latter. I have indicated tube m2, at which to encircle the pivot-rod u.

my invention contemplates provision foi` re- B2, which I prefer to form of wood and in cyends sockets in theside bars, as indicatedin Fig. 2, and are fastened in place, as by gluing, A to afford astrong and rigid frame, in which the' shovel-gates are suspended,as hereinafterdef" 6o there extends'- between the side bars a pivotfrod n4 fora l shovel-gate C, the width of which should be such as to cause it to reach from side to side ofthe boxl between the rails p paud the side bars uponthem, which latter thu's afford" 1f a form of shovel-gatesupports.4 l prefecto formih'e shovel'-gates of sheet metal and to strengthen them by means of;`corri igat ions O". l beads vrt/,as shown `in Fig.f10, containing;'-7 wire rodsms, provided vwith eyes m4at which 'I to suspend the shovel-gatev on its-pivot-rod,' and the upper edge of'each shovelLgafte'of thev rerrepresented by'full lines, or in that in. l vie'w like that presented by Fig. 1, but sholw 1 me i and the tie-rods B2 are located preferably inA IDO this modified construction in Fig. 3, wherein c denotes the longitudinal slots in the sides of the conveyer-box and d the extended ends of the stop-affording tie-rods passing through the slots. l

For reciprocating the side-bars B and B I show, in Figs. l and 2, aframe D, rigidly fastened on the conveyerlbox near one end thereof, and having journaled in it a rotary driveshaft E, carrying at one end a belt-p`ul ley c andbetween its ends an eccentric F, confined between upright plates Z and 7c, extending, respectively, between the opposite ends of a pair of side plates l' and k', fastened at theirlower edges to the side-bars B and B', Vwhereby the latter are reciprocated, and with them the shovel-gates and tie-bars, by rotating the shaft E. Any other suitable forni of driving means may, however, be employed for the` same purpose without departure from my invention. v

The construction of my improved conveyor thus' described adapts it particularly for cenveying soft material-such asiiour, meal, and similar products-which, when introduced into the box A, and the shaft E bein gset in m0- tion to reciprocatethe side bars, is conveyed toward and discharged at either opening q or q', depending on which side of the tie-rods the shovel-gates are adjusted to bear the motion of the side bars in one direction, causing the shovellgates to slide over the material and their motion in the opposite direction engaging the shovelgates, owing to the stops Bf' behind them, with the material, cansingthem to dig into the latter and, by the advance of the` side bars, convey it'to the respective dis charge-openings. v

To prevent any of the material being conveyed from gettingroetween the side bars and sidesrl and rief the conveyor-box, I shield the space between them (not shown because of Vthe small scale of representation observed in the drawings) with covering-strips fifi, extending over the side bars from the sides of the box, and which may be wooden strips of V shape, or approximately that shape in crosssection, or strips of leather, cloth, or the like.

- Advantages of havingthe tie-bars, forming back stops for the pivotal shovel-gates, extending across the conveyer-box from one side thereof to the other are due to their affording free or unobstructed space above the shovel-gates in which to reverse them and means for leveling the material when the conveyer, is working at its full capacity, as indicated in Fig's. 4 and 5, wherein the material to be conveyed is indicated at M. As the shovel-gates are represented in Fig. 4, the side bars are moving in the direction to lift and slide 'the shovel-gates over the material, and as they are represented in Fig. 5 the side bars are moving in the opposite direction, where the' shovel-gates dig into the material up to the stops or tie-bars, after which the material is shoveled along by the gates.

When the conveyer is employed for conveyi y senesi ing gritty. material-such as sand, cement, or the like-I prefer to construct it as shown in Figs. G, 7, and 8, wherein the side B', also connected at intervalsyy the tie-rods B2, each directly underneath a pivot-rod n, lcarrying a shovel-gate C, have the end tiebarsfB and` rods extended at their opposite extremities,

as shafts ligand B4, through longitudinal slots g in thesides of the conveyenbox, outside of which they carry wheelnf running on tracks f below the slots g, the length of which issutii cient to allow the required play of the recip-` rocating side bars in the box. Each shaft B5 B4, is like each tie-rod B2, by preference directly underneath a pivot-rod n and aiiords a stop for the reversible shovel-gate thereon, and the shafts thus carry the shovel-gate supports.

As the means for reciprocating the side bars carrying the shovel-gates in the modiiied construction thus described, I show a rotary crank-shaft E', carrying a belt-pulley o' and journaled inbearings provided on an extension G at one side of an end of the conveyorboX,;the crank F engaging a yoke F2, having its arms flanking the box and pivotally connected with the opposite ends of the adjacent shaft B3.

What I claim as new, and desire to secure 1. `In a conveyor, the combinationwith the box, of side lcars rcciprocably supported therein, shovel-gaten pivotally and reversibly `supported between said sidebars at suitable intervals apart to engage at their lower free ends the material, tie-bars connecting theside bars at intervals and adording stops against which said shovel-gates are reversible, and driving means for imparting the reciprocating motion to the side-bars, substantially as described. l f

2. In a conveyor, the combination with the box, of side bars reciprocably supported therein along the sides of the box, covring- 'strips extending from said sides over the side bars, shovel-gates pivotally and reversibly supported between said sidebars at suitable intervals apart to engage at their lower free ends the material, tiebars connecting the side-bars at intervals and located directly beneath' the shovelygate pivots and affording stops against which said shovel-gates are reversible, anddriving means for imparting the reciprocating motion to the side -bars, substantially as described.

3. In a conveyor, the combination with the box having longitudinal slts gin its sides, of reciprocable shovelgate supports in the box, shovel-gates pivoted reversibly on said supports, and stops thereon for the shovel-gates, located directly beneath the shovel-gate pivots, shafts passingv at their opposite ends through said slots and carrying said shovelgate supports, and bearings forthe projecting ends of said shafts at the outer sides of the box, substantially as described.

4. In a convyer, the combination with the rof able intervals apart to engage at their lower free ends the material, tie-bars B2 connecting the side-bars at intervals and located directly v beneath the shovel-gate pivotsand aording stops against which said shovel-gates are reio Versible, shafts B3 and B4 extending at their opposite ends beyond the side-bars through said lslots g and carrying Wl1eel.sf,-tracksf for said wheels, and driving nieans -for imparting the reciprocating motion to the sidebars, substantially as described.

. EMIL R. DRAVER. In presence of- H. C. DRAVER,

E. W. DRAVER. 

